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Definition of Pyrethrum
1. Noun. Made of dried flower heads of pyrethrum plants.
2. Noun. White-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum.
Exact synonyms: Chrysanthemum Cinerariifolium, Dalmatia Pyrethrum, Dalmatian Pyrethrum, Tanacetum Cinerariifolium
Group relationships: Genus Tanacetum, Tanacetum
Generic synonyms: Herb, Herbaceous Plant
Group relationships: Genus Tanacetum, Tanacetum
Generic synonyms: Herb, Herbaceous Plant
3. Noun. Spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers; source of an insecticide; sometimes placed in genus Chrysanthemum.
Exact synonyms: Chrysanthemum Coccineum, Painted Daisy, Tanacetum Coccineum
Generic synonyms: Flower
Group relationships: Genus Tanacetum, Tanacetum
Generic synonyms: Flower
Group relationships: Genus Tanacetum, Tanacetum
4. Noun. Used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum.
Exact synonyms: Genus Pyrethrum
Generic synonyms: Asterid Dicot Genus
Group relationships: Aster Family, Asteraceae, Compositae, Family Asteraceae, Family Compositae
Generic synonyms: Asterid Dicot Genus
Group relationships: Aster Family, Asteraceae, Compositae, Family Asteraceae, Family Compositae
Definition of Pyrethrum
1. [n -S]
Lexicographical Neighbors of Pyrethrum
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